CN105793202B - For manufacturing the glass manufacturing equipment and method of sheet glass - Google Patents

For manufacturing the glass manufacturing equipment and method of sheet glass Download PDF

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Publication number
CN105793202B
CN105793202B CN201480065896.XA CN201480065896A CN105793202B CN 105793202 B CN105793202 B CN 105793202B CN 201480065896 A CN201480065896 A CN 201480065896A CN 105793202 B CN105793202 B CN 105793202B
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China
Prior art keywords
roller
draw
downstream
glass tape
along
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CN201480065896.XA
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Chinese (zh)
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CN105793202A (en
Inventor
油田知宏
S·R·伯德特
木幡真澄
C·S·寇格
G·N·库德瓦
M·Y·尼西姆托
G·G·斯奎尔
D·J·乌尔里希
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Corning Inc
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Corning Inc
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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
    • C03B17/06—Forming glass sheets
    • C03B17/068—Means for providing the drawing force, e.g. traction or draw rollers
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
    • C03B17/06—Forming glass sheets
    • C03B17/064—Forming glass sheets by the overflow downdraw fusion process; Isopipes therefor
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/0006—Re-forming shaped glass by drawing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

Glass manufacturing equipment includes forming device and control device, the forming device is configured to production glass tape, the control device is configured to be operating independently the first drawing roller apparatus, the second drawing roller apparatus and third drawing roller apparatus, so that the first upstream draw roller at least one of with substantially invariable torque rotation, so that the first middle reaches draw roller at least one of with substantially invariable torque rotation, and make the first downstream draw roller at least one of with substantially invariable angular speed rotation.In other examples, the method for manufacture glass tape is provided.

Description

For manufacturing the glass manufacturing equipment and method of sheet glass
The application is according to 35U.S.C. § 120, it is desirable that the U.S.Application Serial Number the 14/046th that on October 4th, 2013 submits, No. 419 priority, it is herein based on this application and its full text is incorporated herein by reference.
Technical background
Technical field
The illustrative embodiments of this paper are related to manufacturing under the device and method of sheet glass, and the fusion of manufacture sheet glass Draw device and method.
Background technique
Recently, the interest as glass sheet manufacturing process is pulled down by increasingly increased concern using fusion.Fusion Downdraw glass manufacture can include: it is lower to pull roller apparatus, come to rotate lower roll pair with constant angular speed with main motor；On and Roller apparatus is pulled, with upper slave motor, the upper slave motor is configured to rotate upper roller pair with certain torque, described Torque matches the scheduled percentage for the torque of the main motor of lower roll pair measured.
As described in co-pending US Pat Appl Ser the 13/305,810th submitted on November 29th, 2011 (its full text is incorporated into this article by reference), under the application of various techniques, active/driven configuration meeting of lower/upper drawing roller apparatus It is advantageous.
In addition, fusion downdraw glass manufacturing process can include: control device is configured to be operating independently pulling roller and sets Standby and lower drawing roller apparatus, so that upper drawing roller is rotated to substantially invariable torque, and lower drawing roller is to substantially permanent Fixed angular speed rotation.
As the requirement for sheet glass becomes increasingly harsher, the ability of these drawing roller apparatus can exceed that.
The revealed above- mentioned information of the background technology part merely to understanding of the enhancing for background technique of the invention, Therefore it may may imply the information of those skilled in the art containing any prior art part or the prior art is not formed.
Summary of the invention
The illustrative embodiments of this paper provide the glass manufacturing equipment to form glass tape.
The illustrative embodiments of this paper additionally provide the method for manufacture glass tape.
Other feature of the invention will point out that they are by the description it can be appreciated that can pass through in the following description Implement revealed illustrative embodiments and understands.
Illustrative embodiments disclose the equipment for being configured to production glass tape.The equipment includes forming device, first leads Withdrawing roll equipment, the second drawing roller apparatus, third drawing roller apparatus and control device, the forming device forms glass tape, described Glass tape includes the width extended between first edge part and second edge portion, and the control device is configured to independently Operate the first drawing roller apparatus, the second drawing roller apparatus and third drawing roller apparatus.First drawing roller apparatus includes first Upstream draws roller pair, for the first edge part from forming device along drawing path drawing glassribbons, the drawing path Extend across the width of glass tape.Second drawing roller apparatus includes that the first middle reaches draw roller pair, and first middle reaches draw roller pair Be located along draw path be located at the first upstream draw roller pair downstream so that the first middle reaches draw roller to along drawing The first edge part of the further drawing glassribbons in path processed.It includes that the first downstream draws roller pair that third, which pulls roller apparatus, described First downstream draws being located along for roller pair and draws the downstream that path is located at the first middle reaches drawing roller pair, thus along road is drawn The first edge part of the further drawing glassribbons of diameter.Control device is operating independently the first drawing roller apparatus, second leads Withdrawing roll equipment and third pull roller apparatus so that first upstream draw roller at least one of draw roller with basic Constant torque rotation so that first middle reaches draw roller at least one of draw roller with substantially invariable torque axis It is dynamic, and make first downstream draw roller at least one of draw roller and rotated with substantially invariable angular speed.
Illustrative embodiments further disclose the method for manufacture glass tape.This method comprises: providing the first drawing roller apparatus (it includes the first upstream draw roller to), second drawing roller apparatus (it includes along draw path be located at first upstream drawing First middle reaches in the downstream of roller pair processed draw roller to) and third drawing roller apparatus (it includes along draw path be located at it is described First middle reaches draw roller pair downstream the first downstream draw roller to).This method includes forming glass tape, and the glass tape has The width extended between first edge part and second edge portion；And it is operating independently the first drawing roller apparatus, so that First upstream draw roller at least one of draw roller and rotate with substantially invariable torque, to be drawn along drawing path The first edge part of glass tape.This method includes being operating independently the second drawing roller apparatus, so that the first middle reaches draw roller pair At least one of draw roller and rotate with substantially invariable torque, thus along drawing the of the further drawing glassribbons in path One marginal portion, and be operating independently third drawing roller apparatus so that the first downstream draw roller at least one of draw Roller is rotated with substantially invariable angular speed, thus along the first edge part for drawing the next further drawing glassribbons in path.
It should be understood that foregoing general description and the following detailed description are all example and illustrative, it is intended to this Invention is further expalined.
Detailed description of the invention
It provides bright for further understanding for illustrative embodiments, and is incorporated in the present specification comprising attached drawing, Part of it is constituted, attached drawing shows exemplary embodiments of the present invention, and is used to explain the present invention together with specification Principle.
Fig. 1 shows the glass manufacturing equipment of an illustrative embodiments according to the present invention.
Fig. 2 is the side view of the glass manufacturing equipment of Fig. 1 of an illustrative embodiments according to the present invention.
Fig. 3 is that the glass manufacturing equipment of Fig. 1 of an illustrative embodiments according to the present invention is located at the first elevation Top view.
Fig. 4 is that the glass manufacturing equipment of Fig. 1 of an illustrative embodiments according to the present invention is located at the second elevation Top view.
Fig. 5 is that the glass manufacturing equipment of Fig. 1 of an illustrative embodiments according to the present invention is located at third elevation Top view.
Fig. 6 shows the glass manufacturing equipment of an illustrative embodiments according to the present invention.
Fig. 7 is that the glass manufacturing equipment of Fig. 6 of an illustrative embodiments according to the present invention is located at intermediate elevation Top view.
Fig. 8 shows that the independent constant force for being located at two different elevations according to an illustrative embodiment of the invention is defeated Enter the exemplary diagram of control.
Fig. 9 shows the example for the active force of minimum drawing roller according to an illustrative embodiment of the invention being subjected to Figure.
Figure 10 shows the exemplary diagram of the speed of minimum drawing roller according to an illustrative embodiment of the invention.
Specific embodiment
The present invention is described in more detail below with reference to the accompanying drawings herein, wherein illustrative embodiments are given in attached drawing.But It is that claim can be implemented in a number of different ways, should not be interpreted to be defined in the embodiment herein proposed.Phase Instead, these embodiments provided make the present invention thorough and complete, can fully show right to those skilled in the art The range of claim.In the accompanying drawings, for clarity, the size and relative size of layer and region be may be exaggerated.In attached drawing Identical appended drawing reference indicates identical element.
It should be appreciated that when describing a kind of element in another element "upper" or when with another element " being connected ", the element It can be connected directly in other elements or directly with other elements, or there may also be insertion elements.On the contrary, working as one Kind of element is referred to as " on another element " or when with another element " being connected directly ", then insertion element is not present.It answers Understand, for purposes of the present invention, " at least one of X, Y and Z " may be interpreted as only X, only Y, only Z, or X, any combination (for example, XYZ, XYY, YZ, ZZ) of two or more projects in Y and Z.
Referring now to Fig. 1 and 2, it is shown that the exemplary reality of the glass manufacturing equipment 101 of some aspects for use in the present invention Apply the front schematic view and side view of mode.Glass manufacturing equipment 101 is shown as downdraw fusion equipment, but in other examples In other formers also can be used.In one example, glass manufacturing equipment 101 may include forming device 103 to produce Glass tape 105, the glass tape 105 be included in glass tape 105 first edge part 105a and second edge portion 105b it Between the width " W " that extends.
As further shown in Fig. 1 and 2, glass manufacturing equipment 101 may include drawing roller arrangement 115 and separator 119.Root According to aspect of the invention, various forming devices can be used.For example, as illustrated in fig. 1 and 2, forming device 103 includes opening 133, Receive the melten glass 123 flowed into slot 135.Then 123 overflow of melten glass from slot 135 and two sides are flowed down to 137a and 137b is fused together in the root of forming device 103 139 later.Root 139 is that two sides 137a, 137b are merged into Place together, and be when glass tape 105 pulls out downwards from root 139, what is flowed on two sides 137a, 137b respectively is molten Melt the place that two overflow walls of glass 123 fuse together.
The glass tape 105 of a part is pulled out from root 139 and enters sticky region 141, wherein glass tape 105 starts thinning To final thickness.Then the glass tape 105 of the part is pulled to from sticky region 141 into solidification zone 143 (viscoelastic region).Solidifying Gu in area 143, the glass tape 105 of the part is frozen into the elastic stage with required profile from viscous state.Then by the portion The glass tape 105 divided is drawn to elastic region 145 from solidification zone 143.Once glass tape 105 can carry out limited in elastic region 145 Ground deformation, will not for good and all change the profile of glass tape 105.
After the glass tape 105 of the part enters elastic region 145, separator 119 can be provided, in a period of time It is interior, multiple pieces of glass piece 147a, 147b are successively separated from glass tape 105.Separator 119 may include shown in traveling anvil machine, but It is that other separators can also be provided in other examples.
Glass manufacturing equipment 101 further includes drawing roller arrangement 115, as shown schematically in Fig. 1 and 2.It as detailed below, can be with Drawing roller arrangement 215 is provided to help from 139 drawing glassribbons 105 of root, and can active force on insulating glass band 105 from Elastic region 145 is transferred to solidification zone 143.In this way, glass tape can be drawn into required thickness by drawing roller arrangement of the invention, together When also reduce sheet glass in residual stress.As indicated, drawing roller arrangement 115 can be located at sticky region 141, solidification zone 143 and bullet In property area 145.In fact, as shown in the picture, (as will be detailed later) first pulls roller apparatus and is located in sticky region 141, or The top of the solidification zone 143 adjacent with sticky region 141 can be located at.(as will be detailed later) second pulls roller apparatus and is located at solidification In area 143, and (as will be detailed later) third drawing roller apparatus is located in elastic region 145.
Fig. 1, Fig. 2 and Fig. 3 show the first of the drawing roller arrangement 115 of an illustrative embodiments according to the present invention A example, but also can provide other drawing roller arrangements 115 in other examples and construct.Pulling roller arrangement 115 may include first Roller apparatus 149 is pulled, the first drawing roller apparatus 149 includes that the first upstream draws roller to 151, and first upstream draws roller It is configured to from forming device 103 to 151 along the first edge part 105a for drawing 153 drawing glassribbons 105 of path, the drawing Path 153 processed extends across the width " W " of glass tape 105.
As indicated, it may include the drawing roller element of the first drawing roller element 155a and second to 151 that the first upstream, which draws roller, 155b.First and second drawing roller elements 155a, 155b can be respectively provided with respective refractory roll cover 157a, 157b, It is configured to engage the first edge part 105a of glass tape 105 therebetween.In first and second drawing roller elements 155a, 155b At least one can provide respective motor 159a, 159b.For example, as indicated, first and second drawing roller element 155a, Both 155b are provided with respective motor 159a, 159b.In other examples, first and second drawing roller element 155a, Only have one in 155b and be provided with motor, wherein other drawing roller elements can provide bearing, so that the first and second drawings Only have one in roller element 155a, 155b to be driven.
In another example, roller is drawn to 151 supplement or substitution, the first drawing roller apparatus 149 as the first upstream It may include that the second upstream draws roller to 161, second upstream draws roller and is configured to from forming device 103 to 161 along drawing The second edge portion 105b of 153 drawing glassribbons 105 of path.As shown, it may include first to 161 that the second upstream, which draws roller, Pull the drawing of roller element 163a and second roller element 163b.First and second drawing roller elements 163a, 163b can be respectively provided with Respective refractory roll cover 165a, 165b is configured to engage the second edge portion 105b of glass tape 105 therebetween.The One and second drawing at least one of roller element 163a, 163b can provide respective motor 167a, 167b.For example, as institute Show, both first and second drawing roller elements 163a, 163b are provided with respective motor 167a, 167b.In other examples In, only one is provided with motor in the first and second drawing roller elements 167a, 167b, wherein other drawing roller elements can mention For bearing, driven so that only having one in the first and second drawing roller elements 167a, 167b.
As shown in Figure 1, Figure 2 and Figure 4, drawing roller arrangement 115 further includes the second drawing roller apparatus 169, second drawing Roller apparatus 169 includes being located at the first upstream drawing roller along drawing path 153 to draw roller pair to first middle reaches in 151 downstream 171, wherein the first middle reaches drawing roller is configured to the first edge portion along drawing path 153 to glass tape 105 to 171 105a is divided further to be drawn.As indicated, it may include the first drawing roller element 173a and second to 171 that the first middle reaches, which draw roller, Pull roller element 173b.First and second drawing roller elements 173a, 173b can be respectively provided with respective refractory roll cover 175a, 175b are configured to engage the first edge part 105a of glass tape 205 therebetween.First and second drawing roller elements At least one of 173a, 173b can provide respective motor 177a, 177b.For example, as indicated, the first and second pulling rollers Both element 173a, 173b are provided with respective motor 177a, 177b.In other examples, the first and second pulling rollers member Only have one in part 173a, 173b and be provided with motor, wherein other drawing roller elements can provide bearing, so that first and second Only one is driven in drawing roller element 173a, 173b.
In another example, roller is drawn to 171 supplement or substitution, the second drawing roller apparatus 169 as the first middle reaches It may include that the second middle reaches draw roller to 179, second middle reaches draw roller and are located at the second upstream along path 153 is drawn to 179 Roller is drawn to 161 downstream, wherein second middle reaches draw roller and are configured to further draw along drawing path 153 to 179 The second edge portion 105b of glass tape 105 processed.As indicated, it may include the first drawing roller element to 179 that the second middle reaches, which draw roller, The drawing of 181a and second roller element 181b.First and second drawing roller elements 181a, 181b can be respectively provided with respective fire resisting Roller covering 183a, 183b are configured to engage the second edge portion 105b of glass tape 105 therebetween.First and second lead At least one of withdrawing roll element 181a, 181b can provide respective motor 185a, 185b.For example, as indicated, first and Both two drawing roller elements 181a, 181b are provided with respective motor 185a, 185b.In other examples, first and second Only one is provided with motor in drawing roller element 181a, 181b, wherein and other drawing roller elements can provide bearing, so that the One and second drawing roller element 181a, 181b in only one driven.
As shown in Figure 1, Figure 2 and shown in Fig. 5, drawing roller arrangement 115 further includes third drawing roller apparatus 187, the third drawing Roller apparatus 187 includes being located at the first middle reaches drawing roller along drawing path 153 to draw roller pair to first downstream in 171 downstream 189, wherein the first downstream drawing roller is configured to the first edge portion along drawing path 153 to glass tape 105 to 189 105a is divided further to be drawn.As indicated, it may include the first drawing roller element 191a and second to 189 that the first downstream, which draws roller, Pull roller element 191b.First and second drawing roller elements 191a, 191b can be respectively provided with respective refractory roll cover 193a, 193b are configured to engage the first edge part 105a of glass tape 105 therebetween.First and second drawing roller elements At least one of 191a, 191b can provide respective motor 195a, 195b.For example, as indicated, the first and second pulling rollers Both element 191a, 191b are provided with respective motor 195a, 195b.In other examples, the first and second pulling rollers member Only have one in part 191a, 191b and be provided with motor, wherein other drawing roller elements can provide bearing, so that first and second Only one is driven in drawing roller element 191a, 191b.
In another example, roller is drawn to 189 supplement or substitution as the first downstream, third pulls roller apparatus 187 It may include that the second downstream draws roller to 197, second downstream draws roller and is located at the second middle reaches along path 153 is drawn to 197 Roller is drawn to 179 downstream, wherein second downstream draws roller and is configured to further draw along drawing path 153 to 197 The second edge portion 105b of glass tape 105 processed.As indicated, it may include the first drawing roller element to 197 that the second downstream, which draws roller, The drawing of 199a and second roller element 199b.First and second drawing roller elements 199a, 199b can be respectively provided with respective fire resisting Roller covering 201a, 201b are configured to engage the second edge portion 105b of glass tape 105 therebetween.First and second lead At least one of withdrawing roll element 199a, 199b can provide respective motor 203a, 203b.For example, as indicated, first and Both two drawing roller elements 199a, 199b are provided with respective motor 203a, 203b.In other examples, first and second Only one is provided with motor in drawing roller element 199a, 199b, wherein and other drawing roller elements can provide bearing, so that the One and second drawing roller element 199a, 199b in only one driven.It should be understood that drawing roller arrangement 115 may also include Optional edge rollers are to 202 (202a, 202b) and 204 and optional idle running short roller to 206,208 (referring to Fig. 1,2 and 6).
As shown in Figures 6 and 7, drawing roller arrangement 115 may also include intermediate drawing roller apparatus 205 comprising draw among first For roller processed to 207, the first medium drawing roller is located at the first middle reaches drawing roller to 171 downstream along path 153 is drawn to 207 And it is located at the first downstream drawing roller to 189 upstream along path is drawn.First medium drawing roller is configured to 207 along drawing The first edge part 105a of the further drawing glassribbons 105 in path 153 processed.As indicated, the first medium drawing roller can be wrapped to 207 Include the drawing of the first drawing roller element 209a and second roller element 209b.First and second drawing roller elements 209a, 209b can be distinguished It is provided with respective refractory roll cover 211a, 211b, is configured to engage the first edge part of glass tape 105 therebetween 105a.At least one of first and second drawing roller elements 209a, 209b can provide respective motor 213a, 213b.Example Such as, as indicated, both first and second drawing roller elements 213a, 213b are provided with respective motor 213a, 213b.At other In example, only one is provided with motor in the first and second drawing roller elements 209a, 209b, wherein other drawing roller elements It can provide bearing, driven so that only having one in the first and second drawing roller elements 209a, 209b.
In another example, as the first medium drawing roller to 207 supplement or substitution, centre pulls roller apparatus 205 It may include the second medium drawing roller to 215, the second medium drawing roller is located at the second middle reaches along path 153 is drawn to 215 Roller is drawn to 179 downstream, and be located at the second downstream drawing roller to 197 upstream along path 153 is drawn.It draws in the second middle reaches Roller processed is configured to 215 along the second edge portion 105b for drawing the further drawing glassribbons 105 in path 153.As shown, Second medium drawing roller may include the drawing of the first drawing roller element 217a and second roller element 217b to 215.First and second lead Withdrawing roll element 217a, 217b can be respectively provided with respective refractory roll cover 219a, 219b, be configured to engage therebetween The second edge portion 105b of glass tape 105.At least one of first and second drawing roller elements 217a, 217b can provide Respective motor 221a, 221b.For example, as indicated, both first and second drawing roller elements 217a, 217b are provided with respectively Motor 221a, 221b.In other examples, only have one in the first and second drawing roller elements 217a, 217b and be provided with electricity Machine, wherein other drawing roller elements can provide bearing, so that only one in the first and second drawing roller elements 217a, 217b It is driven.
Although the position of the drawing roller apparatus 205 intermediate with shown in is led in the second drawing roller apparatus 169 and third The 4th elevation between withdrawing roll equipment 187, illustrative embodiments that the present invention is not restricted to these.Centre drawing roller apparatus 205 can Positioned at the various elevations of drawing roller arrangement 115.In addition, intermediate drawing roller apparatus 205 can be it is modular so that can To protect multiple drawing roller apparatus 205 in drawing roller arrangement 115, and it is located along the various height for drawing path 153 Journey.
Although by each drawing roller to be described as include first and second drawing roller elements, the first and second pulling rollers It is the drawing roller for drawing roller pair that element, which is also known as,.
The drawing roller arrangement 115 of glass manufacturing equipment 101 may also include control device 223 (for example, Programmable logical controller Device), it is configured to be operating independently the first drawing roller apparatus 149, second drawing roller apparatus 169 and third drawing roller apparatus 187, so that the first upstream draws roller at least one of 151 with the rotation of substantially invariable torque, so that the first middle reaches Roller is drawn at least one of 171 with the rotation of substantially invariable torque, and make the first downstream draw roller in 189 extremely Few one with the rotation of substantially invariable angular speed.Control device 223 can pass through cable, wireless network, cable network and combinations thereof Etc. modes, with drawing roller apparatus 149,169,187,205 be connected to 225.For purposes of the present invention, it is operating independently first, Two and third drawing roller apparatus 149,169 and 187 indicate can to first, second, and third drawing roller apparatus in one progress Operation, without being influenced by other operations in the first, second, and third drawing roller apparatus.In this way, for example, being filled with control It sets 223 and is operating independently the first drawing roller apparatus 149 and provide control device to operate the first drawing roller apparatus 149, and do not have to Consider the variation of the operating parameter of the second drawing roller apparatus 169 or third drawing roller apparatus 187.In addition, for example, using control device 223, which are operating independently the second drawing roller apparatus 169, provides control device to operate the second drawing roller apparatus 169, and does not have to examine Consider the variation of the operating parameter of the first drawing roller apparatus 149 or third drawing roller apparatus 187.In addition to this, for example, being filled with control It sets 223 and is operating independently third drawing roller apparatus 187 and provide control device to operate third drawing roller apparatus 187, and do not have to Consider the variation of the operating parameter of the first drawing roller apparatus 149 or the second drawing roller apparatus 169.
As described above, the first upstream draw roller to 151 may include with the first or second drawing roller element 155a, A relevant single motor of 155b.In this example embodiment, control device 223 can operate the single motor, so that relevant First or second drawing roller element 155a, 155b is rotated with substantially invariable torque.As above it is further described that first and second Drawing roller element 155a, 155b can be respectively provided with corresponding motor 159a and 159b.In this example embodiment, control device 223 can With operation motor 159a, 159b so that the first upstream draw roller to 151 at least one (such as two) with substantially invariable torsion Square rotation.So that the first upstream draw roller to 151 two drawing roller elements 159a, 159b all with substantially invariable torque axis Dynamic, it is required for may applying equal active force for the two sides of from the first edge part 105a to glass tape 105.
As described above, the first drawing roller apparatus 149, which may also include the second optional upstream, draws roller to 161.In the example In, the second upstream draws roller and may include and a relevant list of first or second drawing roller element 163a, 163b to 161 A motor.In this example embodiment, control device 223 can operate the single motor, so that relevant first or second pulling roller is first Part 163a, 163b are rotated with substantially invariable torque.As above it is further described that first and second drawing roller element 163a, 163b can be respectively provided with corresponding motor 167a, 167b.In this example embodiment, control device 223 can with operation motor 167a, 167b, so that the second upstream is drawn roller and rotated to 161 at least one (such as two) with substantially invariable torque.So that second Upstream is drawn roller and is all rotated to 161 two drawing roller elements 163a, 163b with substantially invariable torque, may be for glass It is required that two sides with 105 second edge portion 105b, which apply equal active force,.
Although being not required to, in some instances, control device 223 can be grasped with substantially invariable first torque Make to draw roller to 151 one or two relevant motor to the first upstream, and can be simultaneously operated and be drawn with the second upstream Roller rotates 161 one or two relevant motor with substantially invariable second torque, and second torque is substantially equal to first Torque.There is provided the first and second of substantially equal torques may be for for example to glass tape 105 and the first and second edge part It is required for dividing 105a, 105b to apply essentially identical active force.
As described above, the second drawing roller apparatus 169, which may also include the second optional middle reaches, draws roller to 179.In the example In, the second middle reaches draw roller and may include and a relevant list of first or second drawing roller element 181a, 181b to 179 A motor.In this example embodiment, control device 223 can operate the single motor, so that relevant first or second pulling roller is first Part 181a, 181b are rotated with substantially invariable torque.As above it is further described that first and second drawing roller element 181a, 181b can be respectively provided with corresponding motor 185a, 185b.In this example embodiment, control device 223 can with operation motor 185a, 185b, so that the second middle reaches are drawn roller and rotated to 179 at least one (such as two) with substantially invariable torque.So that second Middle reaches are drawn roller and are all rotated to 179 two drawing roller elements 181a, 181b with substantially invariable torque, may be for glass It is required that two sides with 105 second edge portion 105b, which apply equal active force,.
Although being not required to, in some instances, control device 223 can be grasped with substantially invariable first torque Make to draw roller to 171 one or two relevant motor to the first middle reaches, and can be simultaneously operated and be drawn with the second middle reaches Roller rotates 179 one or two relevant motor with substantially invariable second torque, and second torque is substantially equal to first Torque.There is provided the first and second of substantially equal torques may be for for example to glass tape 105 and the first and second edge part It is required for dividing 105a, 105b to apply essentially identical active force.
As described above, the first downstream draw roller to 189 may include with the first or second drawing roller element 191a, A relevant single motor of 191b.In this example embodiment, control device 223 can operate the single motor, so that relevant First or second drawing roller element 191a, 191b is rotated with substantially invariable angular speed.As above it is further described that first and the Two drawing roller elements 191a, 191b can be respectively provided with corresponding motor 195a, 195b.In this example embodiment, control device 223 can With operation motor 195a, 195b so that the first downstream draw roller to 189 at least one (such as two) with substantially invariable angle Speed rotation.So that the first downstream is drawn roller and is turned to 189 two drawing roller elements 191a, 191b with substantially invariable angular speed It is dynamic, it may equally drawing glassribbons be required two sides for the first edge part 105a in glass tape 105.
As described above, third drawing roller apparatus 187, which may also include the second optional downstream, draws roller to 197.In the example In, the second downstream draws roller and may include and a relevant list of first or second drawing roller element 199a, 199b to 197 A motor.In this example embodiment, control device 223 can operate the single motor, so that relevant first or second pulling roller is first Part 199a, 199b are rotated with substantially invariable angular speed.As above it is further described that first and second drawing roller element 199a, 199b can be respectively provided with corresponding motor 203a, 203b.In this example embodiment, control device 223 can operate the drawing of the second downstream Roller processed rotates 197 at least one (such as two) with substantially invariable angular speed.So that the second downstream draws roller to 197 Two drawing roller elements 199a, 199b, may be on the second side of glass tape 105 all with the rotation of substantially invariable angular speed The two sides of 105b are divided in edge, and equally drawing glassribbons are required.
Although being not required to, in some instances, control device 223 can be with substantially invariable first angular speed Operation draws roller to 189 one or two relevant motor to the first downstream, and can be simultaneously operated and draw with the second downstream Roller processed rotates 197 one or two relevant motor with substantially invariable second angular speed, and second angular speed is substantially etc. In the first angular speed.There is provided the first and second of substantially equal angular speed may be for for example in the first and second marginal portion Equally drawing glassribbons are in accordance with desired by 105a, 105b.
As described, control device 223 can be configured to be operating independently the first drawing roller apparatus 149, so that first and second Upstream draws roller at least one of 151,161 with the rotation of substantially invariable torque；But embodiments of the present invention are unlimited In this.That is, in the exemplary embodiment, control device 223 can be configured to be operating independently the first drawing roller apparatus 149, it is not rotated so that the first and second upstreams draw roller at least one of 151,161 with constant torque instead of, with Substantially invariable angular speed rotation.In addition, control device 223 can be configured to be operating independently the second drawing roller apparatus 169, so that First and second middle reaches are drawn roller and are not rotated at least one of 171,179 with constant torque instead of, with substantially constant Angular speed rotation.
Control device 223 may be additionally configured to be operating independently intermediate drawing roller apparatus 205, so that drawing among first and second Roller processed is at least one of 207,215 with the rotation of substantially invariable torque.Alternatively, control device 223 can be configured to independently Operation is intermediate to pull roller apparatus 205, so that the first and second medium drawing rollers are not with constant at least one of 207,215 Torque rotation, but with substantially invariable angular speed rotation.
Table 1 provides 5 different separate control solutions of illustrative embodiments according to the present invention.For example, such as 1 institute of table Show, control program " A " includes control device 223, is configured to: being operating independently the first drawing roller apparatus 149, so that the first He Second upstream draws roller at least one of 151,161 with the rotation of substantially invariable torque；It is operating independently the second pulling roller Equipment 169, so that the first and second middle reaches draw roller at least one of 171,179 with the rotation of substantially invariable torque；Solely On the spot operation third pulls roller apparatus 187, so that the first and second downstreams draw roller at least one of 189,197 with basic Constant angular speed rotation；And control device 223, be configured to be operating independently intermediate drawing roller apparatus 205 (provided that If), so that the first and second medium drawing rollers are rotated or are made with substantially invariable torque at least one of 207,215 It obtains the first and second medium drawing rollers and is not rotated at least one of 207,215 with constant torque, but with substantially constant Angular speed rotation.
As shown in another example of table 1, control program " E " includes control device 223, is configured to: being operating independently First drawing roller apparatus 149, so that the first and second upstreams draw roller at least one of 151,161 with substantially invariable torsion Square rotation；Be operating independently the second drawing roller apparatus 169 so that the first and second middle reaches draw roller in 171,179 at least One with the rotation of substantially invariable torque；It is operating independently third drawing roller apparatus 187, so that the first and second downstreams draw roller To at least one of 189,197 with the rotation of substantially invariable torque；And control device 223, it is configured to be operating independently Centre drawing roller apparatus 205 (if provided), so that the first and second medium drawing rollers are at least one of 207,215 With the rotation of substantially invariable torque.
Table 1
In some instances, drawing roller discussed in entire application to can have with disclosed on April 30th, 2009 No. 2009/0107182 similar construction of U.S. Patent Application Publication No. and direction, full text of Anderson et al. passes through reference It is incorporated into herein.For example, arbitrarily draw roller to can be longitudinally tilted down relative to glass tape (down-tilted) or The roller of person transversely and horizontally.In addition, as shown in Figures 3 and 4, can be placed to any roller to (transversely and horizontally or inclination), with tool There is scheduled horizontal angle θ, so that each face of roller is placed relative to each main surface 227,229 of glass tape 105.It may want to Horizontal angle θ provides a suitable level of lateral pulling tension 231 and/or adapts to the taper effect that may occur during normal roller is worn It answers.
Fig. 1 and 6 display following example, wherein draw roller pair first drawing roller element 155a, 163a, 173a, 181a, Each of 191a, 199a, 209a, 217a may include the roller longitudinally tilted down relative to glass tape 105.Draw the of roller pair Two drawing roller element 155b, 163b, 173b, 181b, 191b, 199b, 209b, 217b can be similarly included relative to glass tape 105 rollers longitudinally tilted down.It is considered depending on technique, any oblique angle that dips down for drawing roller pair can be with other any drawings Roller is to being similar and different.First and/or second upstream drawing roller can be in two pairs of drawing rollers to 151,161 tilt down To lateral pulling tension 231 horizontal needed for being provided between 151,161.First and/or second middle reaches draw roller to 171,179 Tilt down and can draw rollers at two pairs to lateral pulling tension 233 horizontal needed for providing between 171,179.First and/ Or second downstream draw roller to 189,197 tilt down can two pairs of drawings rollers between 189,197 provide needed for level Lateral pulling tension 235.Similarly, the first and/or second medium drawing roller to 207,215 tilt down can be at two pairs Roller is drawn to lateral pulling tension 237 horizontal needed for providing between 207,215.
In some instances, control device 223 can be configured to activate autonavigator (not shown) or manual mechanism can Position is tilted down for adjust longitudinal cross roll that dips down, so that the average transverse controlled on (or adjusting) glass tape 105 is drawn Tension 231,233,235,237 processed.
In other examples, drawing roller can to one or more of 151,161,171,179,189,197,207,215 To be the horizontal roller relative to glass tape, wherein the shaft for drawing roller extends basically perpendicular to the drawing path 105 of glass tape. If be not required along roller to the horizontal tension on the width of glass tape, one or two drawing roller arrangement is provided Roller to may be desired as roller transversely and horizontally.
The method that manufacture glass tape 105 will be described relative to drawing roller arrangement 115 shown in Fig. 1-7 below.
Referring to Fig. 1,2 and 3, this method may include the step of providing the first drawing roller apparatus 149, and first pulling roller is set Standby 149 include that the first upstream draws roller to 151.In another example, the first drawing roller apparatus 149 is optionally provided with the Two upstreams draw roller to 161.
Referring to Fig. 1,2 and 4, this method further includes the steps that providing the second drawing roller apparatus 169, and second pulling roller is set Standby 169 include being located at the first upstream along drawing path 153 to draw roller to the first middle reaches drawing roller in 151 downstreams to 171.Another In one example, the second drawing roller apparatus 169, which is optionally provided with, is located at the second upstream drawing roller pair along drawing path 153 Second middle reaches in 161 downstreams draw roller to 179.
This method further includes the steps that providing third pulls roller apparatus 187, and the third drawing roller apparatus 187 includes edge Draw path 153 and be located at the first middle reaches and draw roller to first downstream in 171 downstreams drawing roller to 189.In another example In, third drawing roller apparatus 187, which is optionally provided with, is located at the second middle reaches drawing roller to 179 downstreams along drawing path 153 The second downstream draw roller to 197.
Optionally, this method further includes the steps that providing intermediate drawing roller apparatus 205, the intermediate drawing roller apparatus 205 Including the first medium drawing roller to 207, the first medium drawing roller is located at the drawing of the first middle reaches along path 153 is drawn to 207 Roller processed to 171 downstream and along draw path 153 be located at the first downstream drawing roller to 189 upstream.In another example In, centre drawing roller apparatus 205 is optionally provided with the second medium drawing roller to 215, and the second medium drawing roller is to 215 Along draw path 153 be located at the second middle reaches draw roller to 179 downstream and along draw path 153 be located at the second downstream drawing Roller processed to 197 upstream.
Method further includes the steps that being formed glass tape 105, the glass tape 105 have in first edge part 105a and The width " W " extended between second edge portion 105b.For example, the first drawing can be operating independently with control device 223 Roller apparatus 149, without the input from the second drawing roller apparatus 169 or the input from third drawing roller apparatus 187, or Person, when providing any intermediate drawing roller apparatus 205, without the input from intermediate drawing roller apparatus 205.For example, can be only On the spot the first drawing of operation roller apparatus 149, so that the first upstream draws roller to 151 at least one drawing roller (drawing roller element 155a, 155b) with the rotation of substantially invariable torque, thus along the first edge part for drawing 153 drawing glassribbons 105 of path 105a.In one example, the first drawing roller apparatus 149 can be operated, so that the first upstream draws two drawings of the roller to 151 Roller (drawing roller element 155a, 155b) processed is all with the rotation of substantially invariable torque.
The second upstream can also be operating independently and draw roller to 161 (if provided), so that the second upstream draws roller 161 at least one drawing roller (drawing roller element 163a, 163b) is rotated with substantially invariable torque, thus along road is drawn The second edge portion 105b of 153 drawing glassribbons 105 of diameter.In one example, the first drawing roller apparatus 149 can be operated, So that the second upstream draw roller to 161 two drawings rollers (pull roller element 163a, 163b) all with substantially invariable torque axis It is dynamic.In this way, can be maintained in the glass tape 105 between root 139 and the first drawing roller apparatus 149 along path 153 is drawn Required tension 239.
This method is also operating independently the second drawing roller apparatus 169 so that the first middle reaches draw roller to 171 at least one Roller (drawing roller element 173a, 173b) is drawn with the rotation of substantially invariable torque, to further draw along path 153 is drawn The first edge part 105a of glass tape 105.In one example, this method may include operation the second drawing roller apparatus 169 The step of so that the first middle reaches draw roller to 171 two drawings rollers (pull roller element 173a, 173b) all with basic Constant torque rotation.
The second middle reaches can also be operating independently and draw roller to 179 (if provided), so that the second middle reaches draw roller 179 at least one drawing roller (drawing roller element 181a, 181b) is rotated with substantially invariable torque, thus along road is drawn The second edge portion 105b of 153 drawing glassribbons 105 of diameter.In one example, the second drawing roller apparatus 169 can be operated, So that the second middle reaches draw roller to 179 two drawings rollers (pull roller element 181a, 181b) all with substantially invariable torque axis It is dynamic.In this way, the glass between roller apparatus 169 can be pulled in the first drawing roller apparatus 149 and second along path 153 is drawn With maintaining required tension 241 in 105.
This method be also operating independently third drawing roller apparatus 187 so that the first downstream draw roller to 189 at least one Roller (drawing roller element 191a, 191b) is drawn with the rotation of substantially invariable angular speed, to further draw along path 153 is drawn The first edge part 105a of glass tape 105 processed.In one example, this method may include operation third drawing roller apparatus 187 the step of so that the first downstream draw roller to 189 two drawings rollers (pull roller element 191a, 191b) all with base This constant angular speed rotation.
The second downstream can also be operating independently and draw roller to 197 (if provided), so that the second downstream draws roller 197 at least one drawing roller (drawing roller element 199a, 199b) is rotated with substantially invariable angular speed, thus along drawing The second edge portion 105b of 153 drawing glassribbons 105 of path.In one example, this method may include that operation third is led The step of withdrawing roll equipment 187 so that the second downstream draw roller to 197 two drawings rollers (pull roller element 199a, 199b) all with the rotation of substantially invariable angular speed.In this way, 169 He of roller apparatus can be pulled second along path 153 is drawn Required tension 243 is maintained in glass tape 105 between third drawing roller apparatus 187.
When present, this method is also operating independently intermediate drawing roller apparatus 205, so that the first medium drawing roller is to 207 At least one draw roller (drawing roller element 209a, 209b) with the rotation of substantially invariable torque, thus along path 153 is drawn The first edge part 105a (Fig. 6 and 7) of further drawing glassribbons 105.In one example, this method may include operation The step of centre drawing roller apparatus 205, so that two drawing rollers (drawing roller element of the first medium drawing roller to 207 209a, 209b) all with the rotation of substantially invariable torque.
The second medium drawing roller can also be operating independently to 215 (if provided), so that the second medium drawing roller 215 at least one drawing roller (drawing roller element 217a, 217b) is rotated with substantially invariable torque, thus along road is drawn The second edge portion 105b of the further drawing glassribbons 105 of diameter 153.In one example, this method may include in operation Between pull roller apparatus 205 the step of so that the second medium drawing roller to 215 two drawings rollers (pull roller element 217a, 217b) all with the rotation of substantially invariable torque.In this way, roller apparatus 169 can be pulled in second along path 153 is drawn Between pull in glass tape 105 between roller apparatus 205 and maintain required tension 245, and can be along drawing path 153, In Required tension 247 is maintained in glass tape 105 between centre drawing roller apparatus 205 and third drawing roller apparatus 187.
Although illustrative embodiments are described the first drawing roller apparatus 149 and are run with constant torque mode, the second drawing Roller apparatus is run with constant torque mode, and third drawing roller apparatus 187 is run with Constant Angular Velocity mode, and intermediate pulling roller Equipment 205 is run with constant torque mode, and but the invention is not restricted to this.That is, each drawing roller apparatus can be with Constant torque mode or Constant Angular Velocity mode operation.For example, drawing roller apparatus can be run with the control program of table 1.Example Such as, the first drawing roller apparatus 149 can be run with constant torque mode, and the second drawing roller apparatus 169 can be with constant angular velocity Mode operation, third drawing roller apparatus 187 can be run with Constant Angular Velocity mode, and, if provided, centre drawing Roller apparatus 205 can be run with Constant Angular Velocity mode, such as the control program " C " of table 1.
This method may also include whithin a period of time, draw roller to 189 being located at the first downstream along drawing path 153 The position in downstream, the step of successively separating multiple pieces of glass piece 147a, 147b from glass tape 105.For example, as illustrated in fig. 1 and 2, point It can periodically be activated from device 119, to successively separate multiple pieces of glass when from 103 drawing glassribbons 104 of forming device Piece 147a, 147b.
Fig. 8 shows the constant force at two different elevations, for example, curve 249 is shown in the sticky region 141 in Fig. 1 First drawing roller apparatus 149 at constant force and curve 251 show Fig. 1 in solidification (viscoplasticity) area 143 in Constant force at second drawing roller apparatus 169.Control device 223 can be configured to independently at any time with perseverance by user It is set for the first drawing roller apparatus 149 of firmly operation and the second drawing roller apparatus 169.Therefore, glass tape 105 is from root 139 to most Lower roll (third pulls roller apparatus 187) is subjected to constant longitudinal force.
As shown in Figure 1, bottom roller (third pulls roller apparatus 187) is run as drive roll, and transported with constant speed It goes to control the speed of glass tape 105.
Fig. 9 shows the example that the active force that roller is applied to glass tape 105 to 189,197 is drawn by the first and second downstreams Figure.Y-axis is active force (pound) and X-axis is time (hour: minute).One 253 expression passes through in first edge part 105a First downstream draws the active force that roller is applied to glass tape 105 to 189, and another 255 expression is in second edge portion 105b The active force that roller is applied to glass tape 105 to 197 is drawn by the second downstream.Display and 105 weight of glass tape are tried hard in effect Relevant zigzag group is gradually changed, this is because snapping glass tape caused by sheet glass 147a from glass tape 105 Caused by the growth and suddenly change of 105 weight.Since third drawing roller apparatus 187 is located at the downstream of viscoelastic region 143, such as Viscosity equation (equation 1) is described, and in elastic region 145 shown in Fig. 1, the first and second downstreams draw roller and are isolated to 189,197 Disturbance enters viscoplasticity (solidification) area 143.
Wherein, it is Pa that the unit of viscosity (η), which is the unit of Pa.s and modulus of shearing (G),.Therefore, when the unit of η/G is Between.
As shown in FIG. 8 and 9, in the entire period, the first and second upstreams draw roller to the 151,161 and first and Second middle reaches draw roller to 171,179 along draw the first and second marginal portion 105a from path 153 to glass tape 105, 105b applies substantially invariable active force and the first and second downstreams draw roller to 189,197 along drawing path 153 to glass First and second marginal portion 105a, 105b of glass band 105 apply the active force of variation.
Figure 10 shows the of third drawing roller apparatus 187 (it is minimum drawing roller apparatus or actively pulls roller apparatus) One and second downstream draw roller to 189,197 speed and the relationship of time (hour: minute), and show constant speed (each scale is 0.2 inch/minute (50.8mm/ minutes)) is controlled and is maintained excellent to 105 thickness of glass tape Attribute.Easily the speed is adjusted by control device 223, to obtain required product specification, such as thickness.
As shown in Figure 1, along path 153 is drawn, with 257 drawing glassribbons 105 of draw direction.Return to Fig. 8,9 and 10, In In the entire period, the first and second upstreams draw roller to 151,161 respectively with the direction opposite with draw direction 257, to glass Corresponding first and second marginal portions 105a, 105b of glass band 105 apply substantially invariable active force (for example, 8 pounds).Whole In a period, the first and second middle reaches draw roller to 171,179 also respectively with the direction opposite with draw direction 257, to glass Corresponding first and second marginal portions 105a, 105b of glass band 205 apply substantially invariable active force (for example, 6 pounds).Such as into one Shown in step, the first and second downstreams draw roller to 189,197 respectively to corresponding first and second marginal portion of glass tape 105 105a, 105b apply variation active force, direction be from the direction (for example, about 5 pounds) of draw direction 257 to and draw direction 257 opposite directions (for example, about 18 pounds).In this way, drawing roller to the 151, first middle reaches in the first upstream within the entire period Draw roller to 171 and first downstream draw roller between 189, first edge part 105a is consistently maintained in tension.Class As, within the entire period, the second upstream draw roller to the 161, second middle reaches draw roller to 179 and second downstream draw roller Between 197, second edge portion 105b is consistently maintained in tension.In other examples, it depends on equipment to set, two All active forces on a edge 105a, 105b can be worked relative to draw direction 257 with positive direction or negative direction.
As further illustrated in figure 9, due to constant angular speed relevant to roller 189,197 is drawn, the first and second downstreams Draw the active force that roller applies variation to 189,197 respectively.The pattern 259,261 of segment 253,255 is indicated with glass tape The increased active force variation of 105 length, and pattern 263,265 indicates during from 105 separation of glasses piece 147a of glass tape The suddenly change of the active force of generation.At the same time during section, the first and second upstreams draw roller to 151,161 it is constant Torque can maintain the substantially constant active force for glass tape 105, and the first and second middle reaches draw roller to 171,179 perseverance Substantially constant active force for glass tape 105 can also be maintained by determining torque.In this way, can prevent effect force-disturbance along glass tape to On be transferred into solidification zone 143, wherein stress collection neutralizes corresponding surface defect may be by departing from wishing frozen ground to glass tape In 105.
In this way, method of the invention can independently operate the first drawing roller apparatus 149 at any time, so that the first upstream is drawn Roller applies substantially invariable active force to the first edge part 105a of glass tape 105 along drawing path 153 to 151.The party Method may also include independently the step of the second drawing roller apparatus 169 of operation at any time, so that the first downstream draws roller in 171 At least one applies substantially invariable active force to the first edge part 105a of glass tape 105 along drawing path 153.It should Method may also include the step of being operating independently third drawing roller apparatus 187 at any time, so that the first downstream draws roller in 189 At least one rotated with substantially invariable angular speed, and the first downstream draws roller to 189 along drawing path 153 to glass First edge part 105a with 105 applies the active force of variation.This method may also include whithin a period of time, along drawing Path 153 processed be located at the first downstream draw roller to 189 downstream position, successively separate multiple pieces of glass piece from glass tape 105 The step of 147a.
As described above, the first drawing roller apparatus 149, which can provide the second upstream, draws roller to 161.In such example, side Method may also include the step of operation the first drawing roller apparatus 149, so that the second upstream draws roller to 161 along drawing path 153 Apply substantially invariable active force to the second edge portion 105b of glass tape 105.As described above, the second drawing roller apparatus 169 may include being located at the second upstream along drawing path 153 to draw roller to the second middle reaches drawing roller in 161 downstreams to 179.Method May also include operation second drawing roller apparatus 169 the step of so that the second middle reaches draw roller to 179 along draw path 153 to The second edge portion 105b of glass tape 105 applies substantially invariable active force.For another example, as described above, third pulling roller is set Standby 187 may include being located at the second middle reaches along drawing path 153 to draw roller to the second downstream drawing roller in 179 downstreams to 197.In In such example, the step of method may also include operation third drawing roller apparatus 187, so that the second downstream draws roller in 197 At least one rotated with substantially invariable angular speed, and the second downstream draws roller to 197 along drawing path 153 to glass Second edge portion 105b with 105 applies the active force of variation.
This method may also include independently the intermediate the step of pulling roller apparatus 205 (if provided) of operation at any time, So that the first medium drawing roller is at least one of 207 along drawing first edge part of the path 153 to glass tape 105 105a applies substantially invariable active force.As described above, intermediate drawing roller apparatus 205 can provide the second medium drawing roller pair 215.In such example, method may also include operation intermediate the step of pulling roller apparatus 205, so that the second medium drawing roller pair 215 apply substantially invariable active force to the second edge portion 105b of glass tape 105 along drawing path 153.
Drawing roller arrangement 115 can be used for improving the consistency of lateral pulling tension and/or lower drawing piece tension in glass tape, It reduce the residual stress on the glass tape of manufacture and improve glass flatness.More specifically, drawing roller arrangement 115 can For controlling and improving the consistency of lateral pulling tension and/or lower drawing piece tension in the region that glass tape passes through solidification zone, In this region, product stress and flatness are solidified in glass tape.
In comparative examples embodiment, drawing roller arrangement can have upper drawing roller apparatus and lower drawing roller apparatus.In The comparison pull roller arrangement in, in order to respectively it is upper drawing roller apparatus and it is lower draw roller apparatus at realize needed for constant-torque or The power of pinching of constant speed can be excessive for heavy weight glass tape, so that drawing pinching power and can make glass between roller pair Glass band cracking.When manufacturing the large glass piece of big width and long length and small thickness, it is understood that there may be heavy weight glass tape.
In addition, substantially constant torque mode described in illustrative embodiments by the application draws roller to operate upstream Roller pair and medium drawing roller are drawn to (if provided) to, middle reaches, and as shown in segment 249,251, provided relatively In with substantially constant angular speed come operate upstream draw roller to and middle reaches draw roller pair other advantages.Firstly, upstream and midstream Difference can be provided in the different-diameter in roller to the constant angular velocity of (if provided) by drawing roller pair and medium drawing roller Tension.On the contrary, with substantially invariable torque operation upstream and midstream draw roller pair and medium drawing roller to (provided that Words) it can be realized consistent vertical tension at any time.Roller is almost compensated in fact, being operated with substantially invariable torque Abrasion.For constant-torque, as roller is worn, active force slightly changes with roller diameter, but influences very small.Speed control There is much higher susceptibility for roller diameter.Secondly, it can be verified that be difficult to upstream and midstream drawing roller pair and medium drawing Roller is associated with piece speed to the constant angular velocity of (if provided), this is because the uncertainty of the diameter of roller causes 's.On the contrary, with substantially invariable torque operation upstream and midstream draw roller pair and medium drawing roller to (provided that Words) eliminate the associated demand to obtain the angular speed of roller appropriate.Thirdly, with substantially constant torque operation upstream in Trip draws roller pair and medium drawing roller can be to avoid the risk of knot or cracking, when attempting in adjusting to (if provided) When trip and middle reaches drawing roller pair and medium drawing roller wear the speed of (if provided) with compensating roller, it may occur however that institute State the risk of knot or cracking.4th, roller pair and medium drawing roller are drawn with substantially invariable torque operation upstream and midstream If it can be to avoid the risk of roller bounce of constant angular speed when too low to (if provided)., operate upstream at 5th point (if provided) can be transported to avoid due to roller with Constant Angular Velocity mode by drawing roller pair and medium drawing roller with middle reaches The excessive traction action power variation that row may cause.
Therefore, driven roller of the exemplary embodiments of the present invention due to using multiple elevations, can be realized on glass tape The increase of traction force.Therefore, it is possible to make bigger, the heavier and thinner sheet material with more flat surfaces.
Exemplary embodiments of the present invention can apply the modularized design for being easy to extend to four or more elevations.
Exemplary embodiments of the present invention can place driven roller at required elevation, to provide maintenance by gluing Vertical and horizontal drawing effect power needed for the flat glass band of elastic region.It is thereby achieved that longer and broader viscoplasticity Area.
Minimum roller can be placed below viscoelastic region by exemplary embodiments of the present invention, to maintain to pass through from root The constant longitudinal force of viscoelastic region, and isolation viscoelastic region prevent by from downstream disturbances (for example, such as band is raw It is long and band snaps the disturbance of sheet of influence).
Partial function unit described in this specification, such as control device, are labeled with the label of " module ", to emphasize They are independently executed.For example, can execute module as hardware-in-the-loop, the hardware-in-the-loop includes customizing the circuit VLSI Or gate array, ready-made semiconductor, such as logic chip, transistor or other discrete components.It can also be filled with programmable hardware It sets and carrys out execution module, for example, field programmable gate array, programmable logic array or programmable logic device etc..It can also be with Valve, piston, gear, connecting element and spring etc., carry out execution module.
Can also used various types of processors, execution module is come with software operation.The identification module of executable code can To be e.g., including the physical or logic block of one or more computerinstructions, for example, being organized into object, program or function.So And the enforceability of identification module is needed not be and is physically located together, but may include the difference for being stored in different location Instruction, when its logically together when, including module and realize the shown purpose of module.
The module of executable code can be single instrction or multiple instructions, and can even be distributed in the number of distinct program A different code section, and it is distributed in several storage devices.Similarly, operation data can carry out in the module herein Identification and display, and any suitable form can be included by by with any appropriate type of data structure tissue.Operation data It can be used as the collection of forms data group, or can be distributed on the different location including different storage devices.
This specification is related to embodiment, embodiment, illustrative embodiments and this specification in the whole text similar in the whole text Language can be related to identical embodiment, but not necessarily so.In addition, as described herein be related to the theme of illustrative embodiments Feature, structure or the property of substance can combine in any suitable manner in one or more illustrative embodiments.It is retouching In stating, many details are provided, such as control, structure, algorithm, program, software module, user's selection, hardware module, hard The example of part circuit, hardware chip, processor, composition, product etc., to provide being understood completely to the embodiment of theme.But Be it will be appreciated by those skilled in the art that can in the case where none or multiple details practical matter, Huo Zheyong The practical matters such as other methods, component, material.In other cases, do not show well-known structure, material or operation or Person is described in detail, to avoid the various aspects for obscuring revealed theme.
Method as discussed above is usually as shown in logic flow.Thus, shown in sequence and mark the step of indicate generation Table embodiment.For the one or more steps of method or part thereof shown in illustrative embodiments, it may be considered that Other steps and method of function, logic or effect equivalence.In addition, the format and description that use are to provide for walking logic Rapid explanation is not understood to limit the range of shown method.In addition, the sequence occurred in ad hoc approach may be limited strictly to Or it is not limited to the sequence of the corresponding step.
It will be readily apparent to one skilled in the art that can be without departing from the spirit or scope of the present invention the case where Under the present invention is carry out various modifications and is changed.Therefore, the present invention that is intended that of the claimed invention covers in this paper The modification and variation of appearance, as long as these modifications and variation are within the scope of appended claims and its equivalent program.

Claims (21)

1. a kind of glass manufacturing equipment comprising:
Forming device, is configured to production glass tape, the glass tape be included in first edge part and second edge portion it Between the width that extends, wherein the glass tape include sticky region, along draw path be located at the viscoelastic region in sticky region downstream with And it is located at the elastic region in viscoelastic region downstream along drawing path；
First drawing roller apparatus, the first drawing roller apparatus include that the first upstream draws roller pair, and first upstream draws roller To being configured to draw the first edge part of the glass tape, the drawing road from the forming device along path is drawn Diameter extends across the width of the glass tape, wherein the first drawing roller apparatus contacts in sticky region with glass tape；
Second drawing roller apparatus, the second drawing roller apparatus include that the first middle reaches draw roller pair, and first middle reaches draw roller Pair the drawing path that is located along be located at the downstream that first upstream draws roller pair, wherein first middle reaches drawing Roller processed is to being configured to further draw the first edge part of the glass tape along the drawing path；
Third pulls roller apparatus, and the third drawing roller apparatus includes that the first downstream draws roller pair, and first downstream draws roller Pair the drawing path that is located along be located at the downstream that first middle reaches draw roller pair, wherein first downstream drawing Roller processed is to being configured to further draw the first edge part of the glass tape along the drawing path；And
Control device, the control device be configured to be operating independently the first drawing roller apparatus, the second drawing roller apparatus and Third pull roller apparatus so that first upstream draw roller at least one of draw roller with constant torque axis It is dynamic so that first middle reaches draw roller at least one of draw roller and rotated with constant torque, and make described the One downstream draw roller at least one of draw roller and rotated with constant angular speed.
2. equipment as described in claim 1, the equipment further includes intermediate drawing roller apparatus, the intermediate drawing roller apparatus packet Medium drawing roller pair is included, the drawing path that is located along of the medium drawing roller pair is located at first middle reaches drawing roller Pair downstream and along it is described drawing path be located at first downstream drawing roller pair upstream, wherein the medium drawing Roller to being configured to further draw the first edge part of the glass tape along the drawing path,
Wherein, the control device is configured to be operating independently the intermediate drawing roller apparatus, so that the medium drawing Roller at least one of draw roller and rotated with constant torque.
3. equipment as described in claim 1, which is characterized in that the control device is configured to: operation first pulling roller Equipment, so that two drawing rollers that first upstream draws roller centering are all rotated with constant torque；Operate described Two drawing roller apparatus, so that two drawing rollers that first middle reaches draw roller centering are all rotated with constant torque；With And the operation third pulls roller apparatus, so that first downstream draws two drawing rollers of roller centering all with constant Angular speed rotation.
4. equipment as described in claim 1, which is characterized in that
The first drawing roller apparatus further includes that the second upstream draws roller pair, and second upstream draws roller to being configured to from described Forming device draws the second edge portion of the glass tape along the drawing path,
The second drawing roller apparatus further includes that the second middle reaches draw roller pair, and second middle reaches draw being located along for roller pair It is described draw path be located at second upstream draw roller pair downstream, and second middle reaches drawing roller to be configured to along The second edge portion for drawing path and further drawing the glass tape from the forming device,
The third drawing roller apparatus further includes that the second downstream draws roller pair, and second downstream draws being located along for roller pair It is described draw path be located at second middle reaches draw roller pair downstream, and second downstream drawing roller to be configured to along The second edge portion for drawing path and further drawing the glass tape from the forming device, and
Wherein, the control device is configured to: operation the first drawing roller apparatus, so that second upstream is drawn Roller at least one of draw roller and rotated with constant torque；The second drawing roller apparatus is operated, so that described the Two middle reaches draw roller at least one of draw roller and rotated with constant torque；And the operation third pulls roller apparatus, So that second downstream draw roller at least one of draw roller and rotated with constant angular speed.
5. equipment as claimed in claim 4, which is characterized in that the control device is configured to: operation first drawing Roller apparatus, so that two drawing rollers that second upstream draws roller centering are all rotated with constant torque；Described in operation Second drawing roller apparatus, so that two drawing rollers that second middle reaches draw roller centering are all rotated with constant torque； And the operation third pulls roller apparatus, so that second downstream draws two drawing rollers of roller centering all with constant Angular speed rotation.
6. equipment as described in claim 1, which is characterized in that the second drawing roller apparatus and glass tape are in viscoelastic region Contact.
7. equipment as described in claim 1, which is characterized in that the third drawing roller apparatus and glass tape connect in elastic region Touching.
8. a kind of method for manufacturing glass tape, this method comprises:
First drawing roller apparatus, the second drawing roller apparatus and third are provided and pull roller apparatus, the first drawing roller apparatus includes First upstream draws roller pair, and the second drawing roller apparatus includes to be located at first upstream along drawing path to draw roller pair It includes to be located at described first along the drawing path that first middle reaches in downstream, which draw roller pair and third drawing roller apparatus, The first downstream that middle reaches draw the downstream of roller pair draws roller pair；
Glass tape is formed, the glass tape has the width extended between first edge part and second edge portion, wherein The glass tape includes sticky region, is located at the viscoelastic region in sticky region downstream along drawing path and is located at along path is drawn The elastic region in viscoelastic region downstream；
Be operating independently the first drawing roller apparatus, thus make first upstream draw roller at least one of draw roller It is rotated with constant torque, to draw the first edge part of the glass tape along the drawing path, wherein institute The first drawing roller apparatus is stated to contact in sticky region with glass tape；
Be operating independently the second drawing roller apparatus, thus make first middle reaches draw roller at least one of draw roller It is rotated with constant torque, to further draw the first edge part of the glass tape along the drawing path； And
Be operating independently third drawing roller apparatus, thus make first downstream draw roller at least one of draw roller It is rotated with constant angular speed, to further draw the first edge portion of the glass tape along the drawing path Point.
9. method according to claim 8, the method also includes:
Be operating independently it is described first drawing roller apparatus so that first upstream draw roller pair two drawing rollers all with Constant torque rotation；
Be operating independently it is described second drawing roller apparatus so that first middle reaches draw roller pair two drawing rollers all with Constant torque rotation；And
Be operating independently third drawing roller apparatus so that first downstream draw two drawing rollers of roller pair all with Constant angular speed rotation.
10. method as claimed in claim 9, the method also includes:
The first drawing roller apparatus, the second drawing roller apparatus and third drawing roller apparatus are provided, described first leads There is withdrawing roll equipment the second upstream to draw roller pair, and the second drawing roller apparatus has along the drawings path positioned at described the The second middle reaches that two upstreams draw the downstream of roller pair, which draw roller pair and third drawing roller apparatus, to be had along the drawing The second downstream that path is located at the downstream that second middle reaches draw roller pair draws roller pair；
Be operating independently the first drawing roller apparatus, thus make second upstream draw roller at least one of draw roller It is rotated with constant torque, to draw the second edge portion of the glass tape along the drawing path；
Be operating independently the second drawing roller apparatus, thus make second middle reaches draw roller at least one of draw roller It is rotated with constant torque, to further draw the second edge portion of the glass tape along the drawing path； And
Be operating independently third drawing roller apparatus, thus make second downstream draw roller at least one of draw roller It is rotated with constant angular speed, to further draw the second edge portion of the glass tape along the drawing path Point.
11. method as claimed in claim 10, the method also includes:
Be operating independently the first drawing roller apparatus, thus make second upstream draw two drawing rollers of roller centering all with Constant torque rotation, to draw the second edge portion of the glass tape along the drawing path；
Be operating independently the second drawing roller apparatus, thus make second middle reaches draw two drawing rollers of roller centering all with Constant torque rotation, to further draw the second edge portion of the glass tape along the drawing path；With And
Be operating independently third drawing roller apparatus, thus make second downstream draw two drawing rollers of roller centering all with Constant angular speed rotation, to further draw the second edge portion of the glass tape along the drawing path.
12. method as claimed in claim 10, which is characterized in that first upstream draws roller to the edge in the sticky region The drawing path draw the first edge part, second upstream draw roller in the sticky region along described Draw path and draw the second edge portion, first middle reaches draw roller in the viscoelastic region along the drawing Path draws the first edge part, second middle reaches draw roller in the viscoelastic region along the drawing path The second edge portion is drawn, first downstream draws roller to the downstream along the viscoelastic region for being located at the glass tape It draws path and draws the first edge part and second downstream drawing roller to along under the viscoelastic region The drawing path of trip draws the second edge portion of the glass tape.
13. method as claimed in claim 10, the method also includes: in the case where being located at described first along the drawing path Trip draw roller to and the second downstream draw roller pair downstream position at, successively separated from the glass tape whithin a period of time more Block sheet glass, wherein within the entire period, second upstream draw roller to along the drawing path to the glass The second edge portion of glass band applies constant active force, second middle reaches draw roller to along the drawing path to The second edge portion of the glass tape applies constant active force, and first downstream draws roller to along the drawing Path gives to the first edge portion of the glass tape adds the active force changed and second downstream to draw roller to edge It is described draw path to the second edge portion of the glass tape apply variation active force.
14. method as claimed in claim 13, which is characterized in that described to draw with draw direction along the drawing path Glass tape, and wherein, within the entire period, first upstream draws roller to opposite with the draw direction Direction gives plus constant active force to the first edge portion of the glass tape, second upstream draw roller to with The opposite direction of the draw direction to the second edge portion of the glass tape applies constant active force, and described One middle reaches are drawn roller and are added to the direction opposite with the draw direction to give to the first edge portion of the glass tape Constant active force, second middle reaches draw roller to the institute come with the direction opposite with the draw direction to the glass tape It states second edge portion and applies constant active force, first downstream draws roller and comes the direction with the draw direction to institute The first edge portion for stating glass tape gives the active force for adding variation and second downstream draws roller to the drawing The active force of variation to apply to the second edge portion of the glass tape in the direction in direction,
Wherein, within the entire period, the first edge part draws roller pair and described first in first upstream Middle reaches draw between roller pair and draw in first middle reaches and consistently tie up between roller pair and first downstream drawing roller pair It holds in tension and the second edge portion draws roller pair in second upstream and second middle reaches draw roller to it Between and second middle reaches draw roller pair and second downstream drawing roller pair between be consistently maintained in tension.
15. method as claimed in claim 14, which is characterized in that within the entire period, drawn in first upstream Roller pair processed and second upstream draw between roller pair, draw roller pair and second middle reaches drawing roller pair in first middle reaches Between and first downstream draw roller to second downstream draw roller pair between, glass tape with the drawing side To in across transverse direction consistently maintain tension.
16. method according to claim 8, the method also includes:
Intermediate drawing roller apparatus is provided, the intermediate drawing roller apparatus includes that intermediate module draws roller pair, and the intermediate module is drawn Roller processed is located to the downstream for being located at drawing roller pair in first middle reaches along the drawing path and along the drawing path First downstream draws the upstream of roller pair；
Be operating independently it is described it is intermediate pull roller apparatus, thus make the medium drawing roller at least one of draw roller with perseverance Fixed torque rotation, to further draw the first edge part of the glass tape along the drawing path.
17. method according to claim 8, the method also includes: in the case where being located at described first along the drawing path Trip is drawn at the position in the downstream of roller pair, successively separates multiple pieces of glass piece from the glass tape whithin a period of time, wherein whole In a period, first upstream draws roller to along the first edge of the drawing path to the glass tape Part applies constant active force, the first medium drawing roller to along the drawing path to the glass tape described the One edge part gives plus constant active force and first downstream draw roller to along the drawing path to the glass The first edge portion of band gives plus the active force of variation.
18. method as claimed in claim 17, which is characterized in that described to draw with draw direction along the drawing path Glass tape, and wherein, within the entire period, first upstream draws roller to opposite with the draw direction Direction gives plus constant active force to the first edge portion of the glass tape, first middle reaches draw roller to with The opposite direction of the draw direction adds constant active force, Yi Jisuo to give to the first edge portion of the glass tape State the first downstream draw roller to the draw direction come to the first edge portion of the glass tape give plus change work Firmly,
Wherein, within the entire period, roller pair is drawn in first upstream and first middle reaches are drawn between roller pair, The first edge part is consistently maintained in tension, and
Wherein, within the entire period, roller pair is drawn in first middle reaches and first downstream is drawn between roller pair, The first edge part is consistently maintained in tension.
19. method as claimed in claim 17, which is characterized in that described to draw with draw direction along the drawing path Glass tape, and wherein, within the entire period, first upstream is drawn roller and is come to the direction of the draw direction It is given to the first edge portion of the glass tape plus constant active force, first middle reaches draws roller to the drawing The direction in direction adds constant active force and first downstream to draw to give to the first edge portion of the glass tape The active force that roller processed gives plus changed to the first edge portion of the glass tape to the direction with the draw direction,
Wherein, within the entire period, roller pair is drawn in first upstream and first middle reaches are drawn between roller pair, The first edge part is consistently maintained in tension, and
Wherein, within the entire period, roller pair is drawn in first middle reaches and first downstream is drawn between roller pair, The first edge part is consistently maintained in tension.
20. method as claimed in claim 17, which is characterized in that described to draw with draw direction along the drawing path Glass tape, and wherein, within the entire period, first upstream draws roller to opposite with the draw direction Direction gives plus constant active force to the first edge portion of the glass tape, first middle reaches draw roller to with The opposite direction of the draw direction adds constant active force, Yi Jisuo to give to the first edge portion of the glass tape It states the first downstream and draws roller to the first edge part come with the direction opposite with the draw direction to the glass tape Apply the active force of variation,
Wherein, within the entire period, roller pair is drawn in first upstream and first middle reaches are drawn between roller pair, The first edge part is consistently maintained in tension, and
Wherein, within the entire period, roller pair is drawn in first middle reaches and first downstream is drawn between roller pair, The first edge part is consistently maintained in tension.
21. method according to claim 8, which is characterized in that first upstream draws roller to the edge in the sticky region It is described draw path to draw the first edge part of the glass tape, first middle reaches draw roller to described viscous The first edge part of the glass tape is drawn along the drawing path in elastic region and first downstream is drawn Roller processed is to the first edge part for drawing the glass tape along the drawing path for being located at the viscoelastic region downstream.
CN201480065896.XA 2013-10-04 2014-09-30 For manufacturing the glass manufacturing equipment and method of sheet glass Active CN105793202B (en)

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US14/046,419 US9593033B2 (en) 2013-10-04 2013-10-04 Glass manufacturing apparatus and method for manufacturing glass sheet
US14/046,419 2013-10-04
PCT/US2014/058200 WO2015050843A1 (en) 2013-10-04 2014-09-30 Glass manufacturing apparatus and method for manufacturing glass sheet

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JP2016536242A (en) 2016-11-24
KR20160068794A (en) 2016-06-15

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